Weft-replenishing mechanism for looms.



N0. 68|,905. Patqnted Sept. 3, |90l.

W. H. BAKER & F. E. KIP. y

WEFT REPLENISHING MECHANISM FOR LOOMS.

(Application led. Jan. 30, 1901.)

3 Sheets-Sheet AI.

No. sap-90S. Patented sep. 3, lem..

' w. H. BAKER & F. E.l KIP. WEFT HEPLENISHING MECHANISM FOB LUD'MS.

(Application led. Jan. 80, 1901.)

3 Sheets-Shut 2.

(no modem IN-VENTORS BY if WiTNESSES:

ouwe/Y @ow E.

A- ATTORNEY No. 68|,905. Patented Sept. 3, |901.

' W. H. B'AKER & F. E. KIP.

WEFT REPLENISHING MEGHANISM FOR LUOMS.

(Application led Jan. 80, 1901.)

3 Sheets-Sheet 3.

ATTORNEY UNITED STATES WILLIAM H. BAKER, OF CENTRAL FA LLs, RHODEIsLAND, AND FREDERIC E. KIP, OF MONTCLAIR, NEW JERSEY.

WEFT-REPLENISHING MECHANISIVI FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 681,905, datedSeptember 3, 1901.

Application illed January 30, 1901.

To all whom it may concern;

Be it known that we, WILLIAM H. BAKER, residing at Central Falls,Providence county, Rhode Island, and FREDERIC E. KIF, residing atMontclair, Essex county, New Jersey, citizens of the United States, haveinvented certain new and useful Improvements in Veft-ReplenishingMechanism for Looms, of which the following is a specification.

This invention relates to the'class of looms having electrically ormechanically controlled means for automatically changing or supplyingweft or filling while the loom is in opera-- tion. These devices belongto two classes, one known as shuttle-changers and the other asbobbin-changers.

The object of the present invention is to provide a loom having` thesefeatures with a weft-thread cutter adapted to operate automatically atthe time of supplying or changing the weft or filling and adapted to cutthe thread of the exhausted and discharged weftcarrier, as well as tocut the weft end of the fresh weft-carrier supplied to the loom. We haveherein shown our cutting device for the weft-thread adapted and suppliedto a loom substantially the same as that illustrated in our UnitedStates Patent No. 637,695, dated November 21,189.9,whichisashuttle-changer, the operation of supplying or changing the weft orfilling being controlled electrically; but we do not limit ourselves tothe use of this particular form of weft-supplying mechanism inconnection with our cutter.

In the accompanying drawings,which illustrate an embodiment of theinvention, Fig ure` l is a side elevation of a part of the loom providedwith our improvements and showing the positions of the parts undernormal conditions, and Fig. 2 is a similar view showing the positions ofthe parts when the shuttles are being changed. Fig. 3 is a perspectiveview of a part of the lay with the shuttle-box omitted to illustrate theconstruction and operation of the cutter. Fig. 4 is a crosssection ofthe lay just in front of the shuttlebox, showing the cutter-blade in itsnormal position and Fig. 5 is a view showing the position of said bladeimmediately after the 5o displacement of the exhausted weft-carrier.

Fig. 6 is a view of the cutter detached and in Serial No. 45,285. (Nomodel.)

perspective. Figs. 7 and 8 are views similar, respectively, to Figs. 3and 4, showing a construction where the operations of the cutting orparting blade are reversed.

In Figs. l and 2 we have only shown the upper part of the loom, as thisshuttle-changing mechanism is fully illustrated in our beforementionedPatent No. 637,695, and reference may be had thereto for a fullunderstanding 6o of said mechanism. In regard to this feature a briefdescription will suffice.

l is the loom-frame, and 2 the breast-beam thereof. 3 is the lay, and 4is one of the layswords. The lay-sword in the construction shown extendsup and supports the reed 5.

Gis one of the picker-sticks. 7 is the crankshaft from which the lay isvibrated, and 8 is one of the connecting-rods between said crank and thelay. YAll of these parts are 7o common in looms.

The shuttle-magazine 9 is mounted on the breast-beam or on some otherxed part andIV has a delivery to a placer or shuttle-transfer 10 whenthe latter is at rest under the maga- 75 zine. The placer or transferl0, which is carried by a vibratablc supporting-arm ll, transfers theshuttle s from the magazine to the lay, taking the place of theshuttle-box l2. The arm 11 is pivotally mounted at se on the 8oloom-frame and is operated from mechanism below (not shown) at theproper time, as fully illustrated and described in our said LettersPatent. The same mechanism that actuates the placer also actuates orswings aside the shuttle-box,which is suspended at 13, through themedium of a rod 14 and a crank-arm 15. The shuttle-box has no bottom,and when it is swung aside the exhausted shuttle is thrown out and intoa suitable receptacle 16. The 9o placer 10 holds its position at theraceway until the fresh shuttle is picked from it, when it returns toits position under the magazine 9, and the shuttle-box then resumes itsnormal position to receive the shuttle picked back from the oppositeside of the loom. All

of these features are the same as those shown in our said Patent No.637,695.

It is important that the weft-thread which connects the exhaustedshuttlewith the web roo shall be cut or parted when said shuttle is expelled,and it is also important that the weft end, so-called, from the freshshuttle shall be cut or parted as soon as this shuttle shall have beenpicked from the placer. The simple mechanism we have devised foreffecting this object will now be described with especial reference toFigs. 3, 4, and 5.

On the lay is mounted a vibrating knife or shear blade 17, pivotallyattached at 1, so that it may occupy an erect position, as seen in Figs.3 and 4, or a horizontal position, as seen in Fig. 5. On thelayismounted a horizontal fixed shear-blade 18 to actin conjunclion with themovable blade 17 when the latter descends, and on the lay-sword at theend of the reed is mounted an upright fixed shearblade 19 to act inconjunction with the blade 17 when the latter makes its upward stroke.The movable blade 17 has a short arm 20, to which it is connected by aslot-and-pin coupling with the upper end of a lever 21, pivotallymounted on the lay-sword at its lower end. Slight lateral vibration ofthe lever 21 operates the blade 17. This lever 21 is coupled by a link22 to a horizontal operatinglever 23, mounted on the front of the lay.This lever 23, together with the lever 21, is drawn forward normally7byaspring 24, which serves to hold the blade 17 erect. The lever 23 isin the path of the supporting-arm 11, which carries the placer, so thatwhen the latter moves to the lay for supplying a fresh shuttle and theshuttle-box swings back for discharging the substantially exhaustedshuttle the arm 11 will impinge sharply on the lever 23 and drive itback toward the lay. This motion of the lever 23 acts through the link22 and lever 21 to bring the blade 17 sharply down across the threadconnecting the exhausted shuttle with the web and shear off said thread.The blade 17 remains down in the-recess in the lay until the freshshuttle is picked from the placer and the latter Withdraws, when thespring 24 instantly returns the blade to its upright position. In itsreturn movement it severs the weft end left by the fresh shuttle justpicked. It Will be noted that the device acts in the manner of two pairsof shears having but one movable blade withits two sides operating ascutting edges.

In the construction described it is the arm 11 of the weft-supplyingmechanism which actuates the cutter to cut the thread from the expelledweft-carrier or shuttle; but obviously any moving part of the supplyingmechanism may as well be employed for this purpose.

It is not important that the mechanism between the blade 17 and part ofthe weft-supplying mechanism which operates it should be constructed asherein shown. Obviously there are many ways of imparting movement to thepivotally-mounted blade other than that shown. It is only essential thatthe blade shall be caused to cut in one direction, when the freshweft-carrier replaces the exhausted one and cut in the oppositedirection when the fresh weft-carrier shall have been installed andpicked, so as to sever or part the weft end. Ve have found it mostconvenient to use the downcut for severing the thread from the exhaustedweft-carrier; but the invention is not limited in this respect. In Figs.7 and 8 the operatingmechanism is so arranged and constructed that thevibrating cutting or parting blade 17 is normally horizontal and theirst cutis by an upward movement. In these figures the lever 21 isfnlcrumed at e, and the link 22' is coupled to the said lever below thisfulcrum. This link is bent to form an arm 23 parallel with the lay, uponwhich impinges the arm 11 or other vibrating part of the weft-supplyingmechanism. The spring 21' returns the blade 17 to its horizontalposition as soon as the pressure on the arm 23 is relieved.

Obviously the means for parting the weft end and weft-thread may be ofany construction so long as it operates in both directions; but acutting edge is convenient for the purpose. Obviously, also, it is notmates rial whether the means controlling the operation of theweft-supplying mechanism beelectrical or mechanical, as both of thesemeans are Well-known in the art. We have not deemed it necessary to showherein any means for this purpose.

In our United States Patents No. 637,753, dated November 21, 1899, andNo. 655,642, dated August 7, 1900, are illustrated vibratingshuttle-placers adapted for use in connection with the weft-threadcutter or parter of this case, and in our United States Patent No.674,154, dated May 14,1901, We show such a placer controlled by amechanical feeler and without the aid of electricity.

We are the first, so far as we are aware, to employ in a loom aweft-supplying mechanism having a vibrating shuttlefeeder controllingand actuating a lweft-thread cutter or parter, and the first also toemploy a dou'- ble-edged cutter or parter adapted to cut in both of itsmovements of vibration. We therefore claim thesev features broadly anddo not limit ourselves to specic means or mechanisms which may beemployed to accomplish the results.

Having thus described our invention, we claim- 1. In a loom, thecombination with a weft or filling changing or supplying mechanismhaving a vibrating part which operates in supplying fresh weft orfilling, of a vibratin g cutter or parter for the weft-thread,intermediate mechanism whereby said vibrating part of the supplyingmechanism actuates the-cutter to part the weft-thread, and a springwhich actuates the cutter to part the weft end from the freshweft-carrier, substantially as set forth. Y

2. In a loom, the combination with a weft or filling changing orsupplying mechanism,

a vibratable blade with two cutting edges,

IIO

adapted to cut at each movement to and fro, said blade being carried bythe lay and in position to cut, at both movements, a thread carried bythe shuttle, and means, controlled by the said supplying mechanism foractuating said cutting or parting blade, substantially as set forth.

3. In aloom, the combination with a doubleedged weft cutting or partingblade carried by the lay and adapted to vibrate between an upright andhorizontal position, of a spring which returns said blade to and holdsit in one position, a weft or filling supplying mechanism having avibrating part, and means between said blade and said vibrating partwhereby the latter actuates the blade in a direction antagonistic tosaidspring, substantially as set forth.

4. In a loom, the combination with the lay, of an upright shear-bladeand a horizontal shear-blade carried by the lay, a vibratabledouble-edged blade carried by the lay and adapted to coperate with saidshear-blades for severing the weft-threads, means for operating saidblade when fresh weft or filling is supplied to the loom, and means foroperating said lolade immediately after the freshlysupplied weft-carrierhas been picked, substantially as set forth.

5. In a loom, the combination withthe vibratable, double-edgedcutter-blade carried by the lay, of the magazine, the vibratable placer,its supporting-arm, and the mechanism between said arm and said bladewhereby the former actuates the latter, substantially as set forth.

6. In a loom, the combination with a weft or filling changing orsupplying mechanism, of a double-edged, vibratable blade or weftparter,and means for operating said blade or parter to sever the weft-thread ofthe substantially exhausted outgoing shuttle and to sever the weft endof the incoming shuttle directly after the rst pick of the latter.

7. In a loom, the combination of the following instrumentalities: adouble-edged weft cutter or parter, a weft-supplying mechanism, avibratable shuttle-feeder, and means between said feeder and parter foroperating -When the loom is supplied with fresh weft or filling,substantially as set forth.

9. In aloom,the combination with the magazine, the lay, theshuttle-feeder 10, the vibrating, upright arm l1, carrying said feeder,a vibrating cutter or parter for the weft-thread mounted on the lay, aspring adapted to hold the cutter in one of its positions, and mechanismin the path of the vibrating arm ll and connected with the cutter foroperating the same, whereby the impingement of said arm on saidmechanism actuates the cutter, substantially as set forth.

lO. In a loom, the combination with a weft or filling changing orreplenishing mechanism, of a weft cutter or parter consisting of adouble-edged cutting or parting blade, and means intermediate said weftpartei' and replenishing mechanism for operating said weft-parter to cutor part the weft-thread as required.

ll. In a loom, the combination with a weft or filling changing orreplenishing mechan; ism, of a weft cutter or parter consisting of adouble-edged cutting or parting blade, and means intermediate said weftparter and replenishing mechanism for operating said Weft-parter tosever the weft-thread of the outgoing exhausted supply and to sever theweft end of the incoming fresh supply.

In witness whereof we have hereunto signed our names, this 28th day ofJanuary, 1901, in the presence of two subscribing witnesses.

WILLIAM H. BAKER. FREDERIC E. KIP.

Witnesses:

PETER A. Ross, HENRY CONNETT.

